§CDMA2000 is the
collective name for a group of standards that are based on technology
enhancements to the 2G CDMA technology, CDMA one (IS95A).
§ CDMA2000, also known
as IMT-CDMA or IS- 2000, is the main route for CDMA operators to
second-and-a-half (2.5G) and third generation (3G) cellular networks.
§3GPP, the
standard-setting body behind CDMA2000, has created a set of standards that
define the new air interface and Radio Access and Core Network changes that
will enhance network capacity, improve speed and bandwidth to mobile terminals,
and eventually allow end to end IP services.
§CDMA2000 is a
technology for the evolution of cdmaOne/IS-95
to 3rd
generation services.
§CDMA2000 will provide
enhanced services to CDMA One subscribers, as well as forward and backward
capabilities in terminals
§CDMA2000 can be
deployed in several phases. The first phase, CDMA2000 1x, supports an average
of 144 kbps packet data in a mobile environment.§ The second release
of 1x, called 1x-EV-DO will support data rates up to 2M bits/sec on a dedicated
data carrier.§ Finally, 1x-EV-DV
(which probably will be rarely deployed) will support even higher data rates.
§A key component of
CDMA2000 systems will be a new Packet Core Network (PCN) that allows the
delivery of packet data services with more speed and security.
§ The CDMA2000 PCN is
one of the first steps in the evolution of CDMA2000 systems to All- IP and
multi-media architecture.
CDMA 2000 Network Structure:
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